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salvadorperez26
27.07.2019 •
Mathematics
Use π = 3 19. calculate the area of a circle with diameter of 14cm
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Ответ:
A = πr²
Using pi as 3.14
r = radius, d = diameter
r = d/2
r = 14/2
r = 7
A = (3.14)7²
A = 49(3.14)
A = 153.86 cm²
Using pi as 3.19
A = πr²
A = (3.19)7²
A = 49(3.19)
A = 156.31cm²
hope this helps
Ответ:
you state pi = 3.19 ( it is usually 3.14, if it is a typo see below )
diameter = 14cm
r = 1/2 the diameter, so r = 7 cm
area = 3.19 x 7^2
area = 3.19 x 49 = 156.31 square cm
( if PI = 3.14, area = 3.14 * 49 = 153.86 square cm)
Ответ:
base times length times height